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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (12): 24-28.doi: 10.11924/j.issn.1000-6850.2011-2472

所属专题： 水稻； 农业生态

• 农学 农业基础科学 • 上一篇    下一篇

水稻抗性淀粉含量性状的配合力分析

孙春龙 白建江 施标 朱辉明 朴钟泽 都兴林   

  • 收稿日期:2011-08-25 修回日期:2011-11-21 出版日期:2012-04-25 发布日期:2012-04-25

Analysis on Combining Ability of Resistant Starch Content in Rice Grain

  • Received:2011-08-25 Revised:2011-11-21 Online:2012-04-25 Published:2012-04-25

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摘要：

抗性淀粉对人体具有多种重要的生理功能，为了获得具有高抗性淀粉含量的水稻杂交后代，选用6个抗性淀粉含量具有显著差异的水稻品种按Griffing双列杂交设计配置成杂交组合，及正反交F1为材料研究了水稻籽粒抗性淀粉含量性状的遗传规律。结果表明，水稻抗性淀粉含量在参试组合中加性效应起主要的作用，同时受非加性效应以及细胞质效应的影响。一般配合力(GCA)效应在各亲本间存在明显差异，‘降糖稻1号’和‘丙9331’亲本均表现很高的正向一般配合力(GCA)效应值，其一般配合力效应值分别为0.303和0.101。其他品种均表现负向一般配合力(GCA)效应值。亲本本身的抗性淀粉含量与一般配合力的表现趋势一致，与相应的特殊配合力(SCA)有明显的相关性，与杂种一代表现有显著的相关性，表明利用亲本表型值对于预测组合的杂种优势具有一定的意义。

关键词: 白藜芦醇合酶基因, 白藜芦醇合酶基因, DNA, 克隆, 序列分析

Abstract:

Resistant starch has a variety of important physiological functions on human body. The inheritance of the grain resistant starch content was investigated by a 62 diallel design and 6 combinations’ reciprocal cross in order to obtain the rice hybrids with high resistant starch content. The results showed that: Resistant starch content was influenced by additive, non-additive effects and the cytoplasm effect, and mainly by additive effects. The general combining ability (GCA) effect was varied between varieties. ‘Jiangtangdao1’ and ‘Bing9331’ showed high positive general combining ability effects, and the general combining ability effect values were 0.303 and 0.101 respectively. The others showed negative general combining ability effects. The expression of parental resistant starch content was obviously correlated with specific combining ability effects, but was significantly correlated with the general combining ability effects and the expression of F1 hybrid, indicated that the parental value could be used to forecast the heterosis in hybrid rice.